Utah Valley University Herbarium


Accession # 14855 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Senecio flaccidus Less.
Infraspecific    var. flaccidus 
Common name   thread-leaf ragwort
R. Van Buren   1559  
   with J. Cooper
Coll. Date 20 May 2007 
United States
San Juan County
Locality hills on N side of Navajo Canyon, E side of Reservation Rd, ca. 2 miles S of Hatch Trading Post;
     Elev.: 4655 ft. (1419 m.)
Climate NCDC temperatures, daily high (red), daily average (green) and daily low (blue), from 1970 to 2000 at this location.   NCDC average monthly precipitation from 1970 to 2000 at this location.
Latitude Longitude 37° 21'  41.2" N, 109° 13'  15.7" W
Datum WGS84 
Uncertainty Polygon diameter (with coordinate as origin): GPS
Georef. Notes This coordinate was obtained by a GPS unit and an error estimate was not recorded by the user. However due to the accuracy of most units, a polygon diameter between 25 and 250 meters could reasonably be assumed.
Voucher Voucher for "Woody Plants of Utah" by R. Van Buren, K.T. Harper, J. Cooper 
Specimen Notes Journal Code: L3S1. 


Synonyms recognized by ITIS (bold taxon is currently accepted):

     Senecio flaccidus var. flaccidus Less.

     Senecio douglasii var. jamesii (Torr. & Gray) Ediger ex Correll & Johnston
     Senecio douglasii ssp. longilobus (Benth.) W.A. Weber
     Senecio douglasii var. longilobus (Benth.) L. Benson
     Senecio filifolius Nutt., non Berg.
     Senecio longilobus Benth.

Common Name(s): threadleaf groundsel, threadleaf ragwort.

Taxonomic Hierarchy: (ITIS TSN=530313, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Asteridae
                            Order: Asterales
                                Family: Asteraceae
                                    Genus: Senecio
                                        Species: Senecio flaccidus
                                            Variety: Senecio flaccidus var. flaccidus


Images of other samples of the same species:
specimen image: 04242s2.jpg 

Nearby Accessions

  There are no nearby accessions.


Nearby locations from the USGS Geographic Name Information System (GNIS) database:

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Navajo Canyon (Valley) San Juan County, UT 1 mi. W   Hatch Trading Post 
Alkali Creek (Stream) San Juan County, UT 1.7 mi. N   Blanding North 
Hatch Trailer School (School) San Juan County, UT 2.1 mi. N 4702  Hatch Trading Post 
Hatch Trading Post (Locale) San Juan County, UT 2.1 mi. N 4721  Hatch Trading Post 
Alkali Canyon (Valley) San Juan County, UT 2.1 mi. N   Blanding North 
Black Steer Canyon (Valley) San Juan County, UT 3.2 mi. N   Hatch Trading Post 
Black Rock Canyon (Valley) San Juan County, UT 3.2 mi. SW   Montezuma Creek 
Black Steer Park (Flat) San Juan County, UT 3.8 mi. NE 4899  Hatch Trading Post 
Cross Canyon (Valley) San Juan County, UT 4.6 mi. N   Secret Canyon 
Blueberry Spring (Spring) San Juan County, UT 4.4 mi. SW 4607  Montezuma Creek 
Cool Spring House (historical) (Locale) San Juan County, UT 4.7 mi. SE 5174  Navajo Canyon 
Cajon Group Ruins (Locale) San Juan County, UT 4.8 mi. SE 5171  Navajo Canyon 
Straw Spring (Spring) San Juan County, UT 4.5 mi. W 5053  Montezuma Creek 
Pussywillow Spring (Spring) San Juan County, UT 5.9 mi. SW 4702  Montezuma Creek 
Rattlesnake Ranch Number One Upper Dam (Dam) San Juan County, UT 6.6 mi. SW 4541  Montezuma Creek 


Taxon Links for species Senecio flaccidus  Less.

CalPhotos, Berkeley Digital Library Project

CNPS Manual of California Vegetation Database

USDA Plants database
University of Washington Herbarium: Plants of Washington (images)

Texas A&M University: Image Library (images)

Lady Bird Johnson's Wildflower Center

Google Images

External link to this species in the UVU Herbarium:

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